Gas-generator.



W. W. TALBOT.

GAS GENERATOR.

APPLICATION FILED FEB.3,1916.

Patented J an. 16, 1917.

T. T, U M E Z WILLIA'M W. TALBOT, OF NEW YORK, N. Y. ASSIGNOR T FRANK T. FOWLER, OF CHICAGO, ILLINOIS.

GAS-GENERATGR.

Application filed February 3, 1916.

To all whom it may concern:

Be it known that I, VViLLIAM WV. TALBOT,

a citizen of the United States, residing at New York, in the county and State ofNew York, have made a certain new and useful Invention in Gas-Generators, of which the following is a specification.

This invention relates to gas generators, and more particularly to generators of oxygen gas for use in connection with pulmotors.

The object of the invention is to simplify and improve the construction of gas generators of the class referred to, and to reduce the cost of manufacture thereof.

A further object is to produce a gas generator of the nature referred to which is efficient and easily operated, and wherein the generation and delivery of the gas is readily controlled.

A further object is to provide a gas generator in which projecting parts are eliminated, thereby enabling the same to occupy minimum space in packing, shipping, storing or handling the same.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawing, and finally pointed out in the appended claims.

Referring to the drawing, Figure 1 is a p top plan view of a gas generator embodying the principles of my invention. Fig. 2 is a vertical central section of the same on the line 2, 2, Fig. 1, looking in the direction of the arrows. Fig. 3 is a similar view, parts broken ofi, taken on the line 3, 3, Fig. 1, looking in the direction of the arrows. Fig. d is a broken detail view in vertical section, through the relief valve. Fig. 5 is a detached detail view in perspective of one form of cage or holder for the cartridges or charges of chemical compositions employed for generating the gas.

The same part is designated by the same reference numeral wherever it occurs throughout the several views.

In the drawing reference numeral 6 designates an outer container or receptacle 7, the cap or cover therefor, and 8, an inner bell or casing. The container 6 may be of any desired shape adapting it for the pur- Specification of Letters Patent.

Patented Jan. 16, 1917.

Serial No. 75,940.

pose in hand, and, if desired, at its upper and open mouth end is provided with ears 9, to which are pivotally connected levers 10, which, through links 11, engaging over projections 12, on the cap 7, serve to detachably clamp and secure the cap to the container. if desired and in order to secure a gas tight joint between the cap and the mouth of the container, a packing ring 13, is interposed between the cap and container.

The casing 8 is open at its lower end and closed at its upper end, and forms, in effect, an inverted bell within the container 6. This casing is designed to contain the cartridges or charges lei, of chemical composition employed in the generation of the gas to be produced. These cartridges may be supported or sustained within the bell or casing in any suitable manner. A simple arrangement for the purpose is shown wherein a wire cage 15 is employed having the loop portions 16, between adjacent ones of which the cartridges 14: are retained. The cage or cages 15, if more than one is employed, are supplied with the cartridges 14, and then are inserted into the casing 8 through the open end thereof and retained therein in any convenient manner as by proj ections 17, at the lower ends of the cages 15, snapping into a groove 18 formed at the lower end of the casing! By this construction it will be seen that the composition cartridges are supported and retained by the cage in separated relation with respect to each other. This possesses the advantage of securing a more rapid generation of gas for the reason that thereby is secured the exposure of a greater area of the cartridges to the action of the liquid.

The casing 8 is supported within the container 6 by means of a pipe connection 19 to the cap 7. This pipe connection opens communication between the upper closed end of the casing 8 and a duct or passage 20 formed in the cap 7. Connected to this duct or passage 20 is a pipe 21, which extends down and delivers into the container 6. The duct 20 is controlled by a needle valve 22, the stem of which is threaded into a passage formed into the body of the cap. A hand piece 23 on the end of the valve stem which projects beyond the side of the cap affords means to adjust the valve 22.

It is desirable to provide means to prevent the entire withdrawal of the needle valve from its passage in the cap. A simple arrangementv is shown to accomplish this re sult wherein the shank of the valve stem is peripherally reduced, as indicated at 24:, and a set screw 25, tapped through the cap 7, extends into the reduced portion of the valve stem. This arrangement does not interfere with the rotation of the valve stem in the adjustment of the valve but it prevents the withdrawal of the valve stem without first removing the set screw 25. By this arrange ment the danger of removing and accidentally misplacing the valve is avoided.

It is desirable to govern and regulate the pressure of the generated gas which collects within the cap of the container 6. To accomplish this result I provide a relief valve structure illustrated in detail in Fig. 4c. In this arrangement a sleeve 26 is extended into the container 6 through the cap 7, the inner end of said sleeve being provided with an opening 27 therethrough. A ball valve 28 controls this opening. A spring 29 serves to normally but yieldingly press the ball valve into its seat to close the opening 27. The upper end of the spring 29 bears against a plug 30 which is threaded into the sleeve 26 for adjustment therein. This plug is provided with a longitudinal bore 31, therethrough to the outer air and a hand piece 39 to adjust it. A screw cap 32 applied to the outer threaded end of the sleeve 26 forms an abutment for a shoulder 33 on the plug 30, to prevent said plug from being entirely withdrawn from the sleeve 26 without first unscrewing the screw cap. This arrangement avoids the danger of removing and .misplacing the relief valve plug or the ball valve or its spring. This relief valve structure is simpleand eflicient and may be set to permit the escape of accumulated gas within the container 6 when any predetermined pressure is attained, thereby afiording a safety provision which avoids danger of explosion. In order to indicate the degree of pressure of accumulated gas within the container 6 a pressure gage 34 is provided and a pipe section 35 extends through the cap 7 and is connected to said gage. In practice I prefer to place the gage fiatwise upon the upper face of the cap 7 as shown. This avoids any undue projection from the cap and enables the apparatus to occupy minimum space in packing, storing and shipping it. The fact that the duct 20 and the passage for the needle valve are formed in the body of the cap also contributes materially to this result, besides making the structure exceedingly simple and economical to manufacture, and avoiding danger of injury by reason of accidental breaking a projecting pipe or other connection and avoiding the necessity of providing packing for joints.

The service delivery pipe connection 36 is madeto a duct or passage 37 formed in the body of the cap and opening into the top of container 6.

In operation, the container is filled with water or other suitable liquid say to a depth sufficient to immerse the casing 8 therein. The chemical cartridges 14 are inserted in the casing 8, and the cap 7 with the charged casing 8 is then applied and tightly secured to the container. The water or other liquid 7 storage or use. If the pressure of the generated gas collected within the'upper end of the container exceeds a predetermined degree it finds relief through the relief valve.

Having now set forth the objects and nature of my invention, and a construction embodying the principles thereof, what I claim as new and useful and of my own invention, and desire to secure by Letters Patent, is,

1. In an apparatus for generating gas, a container a closure cap therefor, said cap having a duct or passage formed in the body thereof and extending laterally therein, a casing extending into said container, said duct or passage communicating at one end 'with said casing and at the'other end with said container.

2. In an apparatus for generating gas, a container a closure cap therefor, said cap having a duct or passage formed in the body thereof and extending laterally therein, a casing extending into said container, said duct or passage communicating at' one end with said casing, and at the other end with said container, and a .Valve to control said duct or passage.

3. In an apparatus for generating gas, a container, a closure cap therefor, said cap having a duct or passage formed in the body thereof and extending laterally therein, a casing extending into said container, said duct or passage communicating at one end with said casing, and at the other end with said container, a valve tocontrol said duct or passage, the stem of said valve being threaded into a passage formed in the body of said cap, and means to prevent said valve stem from being withdrawn from said passage without interfering with the adjustment ofsaid valve.

4. In an apparatus for generating gas, a

container, a closure cap therefor, said cap having a duct or passage formed in the body thereof and extending laterally therein, a casing extending into said container, said duct or passage communicating at one end with said casing and at the other end with said container, a valve to control said duct or passage, the stem of said valve being threaded into a passage formed in the body of said cap and having a reduced portion, and a set screw tapped through said cap and cooperating with said reduced portion to permit the adjustment of said valve but preventing it from being withdrawn.

5. In an apparatus for generating gas, a container, a closure cap therefor, said cap having a duct or passage formed in the body thereof and extending laterally therein, a casing extending into said container, said duct or passage communicating at one end with said casing and at the other end with said container, a cage having cartridge engaging portions, and means to retain said cage in said casing.

6. In an apparatus for generating oxygen gas, a container having an open upper end, a cap therefor, means to detachably clamp said cap upon the open mouth of the container, said cap having a delivery passage and also a duct formed in the body thereof and extending laterally therein, said delivery passage communicating with the interior of the upper end of said container, an inverted casing closed at its upper end and open at its lower end, a pipe connecting the upper closed end of the casing with one end of said duct, a pipe delivering from the other end of said duct into the container, a valve to control said duct and a relief valve controlled opening through said cap.

In testimony whereof I have hereunto set my hand in the presence of the subscribing witness, on this 1st day of February, A. 1).,

WILLIAM l/V. TALBOT. Witness:

M. A, GRAERiz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

